Maatta, Asko
Current rating: 1550
Record: 5-2-1
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 10 | Kavla, Anders (1500) | Draw 1-1 | 01500 |
| 2sealed | 106 | Messing, Daniel (1500) | Won 2-1 | +181518 |
| 3sealed | 70 | Wikstrom, Mikael (1472) | Won 2-0 | +171535 |
| 4sealed | 58 | Hogdahl, Janni (1536) | Won 2-1 | +181553 |
| 5sealed | 29 | Schipkowski, Jan (1447) | Won 2-0 | +161569 |
| 6sealed | 17 | Peljo, Pekka (1555) | Won 2-0 | +181587 |
| 7sealed | 9 | Saaro, Olli (1522) | Lost 1-2 | -191568 |
| 8sealed | 22 | Kilappa, Vantte (1577) | Lost 1-2 | -181550 |
| average opponent: 1514record: 5-2-1 | new rating: 1550 | |||